angular2-routing - Angular 4路由不起作用

Question

我已经检查了有关此问题的堆栈溢出答案，但是似乎都没有意义，我创建了两个组件page1和page2。并在module.ts中声明一条路由

     import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { Route, RouterModule} from '@angular/router'


import { AppComponent } from './app.component';
import { Page1Component } from './page1/page1.component';
import { Page2Component } from './page2/page2.component';


@NgModule({
  declarations: [
    AppComponent,
    Page1Component,
    Page2Component
  ],
  imports: [
    BrowserModule,
    RouterModule.forRoot([
      {path:'page1', component:Page1Component},
      {path:'page2', component:Page2Component}
    ])
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

而我的page1 html如下

<p>
  page1 works!

<button (click)= 'OnbtnClick()'>Route to Page2</button>
</p>

组件ts如下

import { Component, OnInit } from '@angular/core';
import { Router} from '@angular/router';

@Component({
  selector: 'app-page1',
  templateUrl: './page1.component.html',
  styleUrls: ['./page1.component.css']
})
export class Page1Component implements OnInit {

  constructor(private _router:Router) { }

  ngOnInit() {
  }

OnbtnClick()
{
let abc =this._router.navigate(['/page2'])

}
}

但是在单击按钮时，“Url”正在更改，但是 View 保持不变，appcomponent.html如下。

<div style="text-align:center">
  <h1>
    Welcome to SuperHero!
  </h1>
</div>

<app-page1></app-page1>   

请帮忙 !!

Answer 1

AppComponent.html需要具有<router-outlet></router-outlet>指令:

<div style="text-align:center">
  <h1>
    Welcome to SuperHero!
  </h1>
</div>

<-- The view is injected here -->
<router-outlet></router-outlet>